func (v *DotLoader) loadDigraph(input lattice.Input, labels *digraph.Labels) (graph *digraph.Builder, err error) {
r, closer := input()
text, err := ioutil.ReadAll(r)
closer()
if err != nil {
return nil, err
}
G := digraph.Build(100, 1000)
dp := &dotParse{
b: newBaseLoader(v.dt, G),
d: v,
labels: labels,
vids: make(map[string]int32),
}
// s, err := dot.Lexer.Scanner(text)
// if err != nil {
// return nil, err
// }
// for _, _, eof := s.Next(); !eof; _, _, eof = s.Next() {}
err = dot.StreamParse(text, dp)
if err != nil {
return nil, err
}
return G, nil
}
func convert(input io.Reader, output io.Writer) (err error) {
bytes, err := ioutil.ReadAll(input)
if err != nil {
return err
}
p := &dotParse{
output: output,
vertices: make(map[graphVertex]int),
}
return dot.StreamParse(bytes, p)
}